i want to take two ms exams (70-649 and 70-646) and would like to know if there is a free second shot or any promotions right now. I live in Canada and would like to take exams shortly, in September.Larisa

You can get details on Microsoft Certification Exam packages at given link.
By the way this offer is same as AKovalev has written about
Thanks AKovalev for informing us.

By the way, sorry I could just read your requests and able to reply since I was on a holiday.
And during a week time holiday with my family, I did not use any pc, etc so I stayed away computers, internet, etc.

Here is some more information on Microsoft Certification Packs including discount exam fees and free second shot offer.

There are 5 Microsoft Certification Pack.5 exam pack : If you buy 5-exam pack, you will get 20 percent discount and free Second Shot exam offer with each exam in Microsoft Certification Pack4 exam pack : If you buy 4-exam pack, you will get 15 percent discount and free Second Shot exam offer with each exam in Microsoft Certification Pack3 exam pack : If you buy 3-exam pack, you will get 15 percent discount and free Second Shot exam offer with each exam in Microsoft Certification Pack2 exam pack : If you buy 2-exam pack, you will get 15 percent discount and free Second Shot exam offer with each exam in Microsoft Certification Pack1 exam : If you buy 1 exam, you have the opportunity to purchase the Second Shot exam just for an additional 15 percent price. There is no discount on regular exam fee for your 1 exam registration.

Exam candidates just fill a registration form with firstname, lastname, email address and city/country information.
After registration candidates will get an email from Prometric including Microsoft Certification Pack voucher code.

Note that the same voucher code sent to you will be used in your exams within your certification exam bundle.
Note that if you fail in your exams, you are entitled to a free retake, free second shot exam offer (not included for single exam registration).

Since you plan to take 3 exams, I strongly suggest you to consider 3 exam Microsoft Certification exam pack.
This Microsoft exam certification package has 15% exam fee discount and have free second shot with each exam.